Doesn't need to be a dapp, but an interesting idea for a front end.
Sort posts by "paying out soonest".
Let me browse posts that are about to get nothing in the reward pool, and have a look and see if there's anything worth rewarding at the last "second".
Basically, it would be a:
return all posts created > 6 & < 7 days.
sort from oldest to newest
Slider on the side to filter by reward (ie, reward is between x and y)
Thumbnail, Title, Post Preview, community, Word Count, (count the spaces in the post +1), Picture count (regex for image extensions found in post, and count them)